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[81.2.115.145]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4834d5d77f9sm64344875e9.3.2026.02.10.05.52.26 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Feb 2026 05:52:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1770731547; x=1771336347; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=dCm7KHoJAqs8SA7JjFZDtnB2gN/PwqLJzcqLgMLX7XU=; b=uGa0vdTRmy9GClKQcSKqyMcOY/YWykTt3m+H0P65iALt/7A/FfAhS+gTrNC2eemWdL Pfpb4H1pnekdV7zYfm7ZozOyZHP9D5SXEjLRD/DtjnbbCU3bBD9niS3+fVz9yqtsLZxN gQdagfwVA3KHgWG5/a8shKzFGgnWaB3RzMT5SssEOQSqv+++CB/bQFY/FgTJlJt8w88K NoDcbE6V7lRGEPKoCVxxnkBggOEFYeyD9z7I4vr+pUkneSqmZRcpAhQysza2LDwZPV7k QHv8aRhlxwyMrJHhICSTF3cywnjp0Pl8X4b59Vz7wC3RG0Nui8T/OJBTQO06vAiwAQd6 b78w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1770731547; x=1771336347; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=dCm7KHoJAqs8SA7JjFZDtnB2gN/PwqLJzcqLgMLX7XU=; b=Mv6QlMgECyPUywF2xLsXpNK89Q+qdmMSYkjd3zJsb5xYQvu9xE1PWm4G3QluAQCqIy 7VObPOoGzFgDgti62JyjTr/R860gVrGm9hfOFvLoofOemRPi3lpoJmA3Rz/yyEBvbUHr nqW236blIA7b4lVxHzhh9SUJCZa0c5B5jdHykEuF/OcL1wezYD+hAnMzI2bdBUkmPBx6 BXmT4RtRWmmJ4CMB+QawLBiLqdl4rCpAbQlbd7LO31zMdqAy7vzD4783/jKVJ7+X3mNZ FaNKXd5RpngMLFydsltyn1WmI80fJ6ZyAOJsFZJRqKc31RQd5phJX1DG5IE+aD3kn2zw 5CwQ== X-Gm-Message-State: AOJu0Yx9sqcDn6d1zjOcTMjSCijiyt4nR71VYqr7Slz2i+ljxSB6ObHP YTT73UigYIb/3Vy1vw4haIZjDTnbUerjSVA01121S45HPwOLfh9yH54hkcce0bmuaxH11dYeQ6y JRW7i X-Gm-Gg: AZuq6aKAVgRVVXLfX3BUmjQDCprtC1xOmEkJ9k4N9EX4FoBHLd3e/JQqDRPQ/6nJb/H v+qzlKIcw96P0lv4OlRZwqyOjvaA006W+Bm/42kZUp6e0O7qazWYPdMloF2iAoBfkGb9s3Xhod+ dQr+IK/6fT2IFeFlw6hPR6MnBiaZvUtwI1DiCEHFZDazIqp/16t437hcXaDGIcY/R9L+KwCmdCi ZEiS0HOEz0QZ7zM15Ov/isCws2W3OxQYljiodb+8epZQtT9KUwsLPV/MBDZv7VFSRqiPxh+MwEC Zcq8CvPZ9+Gchm8/ppqVaAYz3RMg1eOgcxMxogzgwUHj8hQsdD4r7WaoqncnlyWSy3X/MLKFqGQ rppqDV6Tss/VZvw48Bs+4sv2PpD1KXqRmn4Qe8bUAl7hrkuTxWEBrDl32wsPYCOiJMizhiSswoR AQQmdVnDf0YITC9jxOINjsx6b07ypzElHYnFfE5342rlGfJb9rKdxXo0mIH1WDvCIwOqZsjkzQx hF6c2KG2+Z3GTi/2t/Y+5H6rk3oBP+f9MJE9msCLA== X-Received: by 2002:a05:600c:4e8b:b0:477:7bca:8b2b with SMTP id 5b1f17b1804b1-483507f2bb3mr31237915e9.15.1770731547236; Tue, 10 Feb 2026 05:52:27 -0800 (PST) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 22/26] whpx: arm64: add partition-wide reset on the reboot path Date: Tue, 10 Feb 2026 13:52:02 +0000 Message-ID: <20260210135206.229528-23-peter.maydell@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260210135206.229528-1-peter.maydell@linaro.org> References: <20260210135206.229528-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::32e; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x32e.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1770731704055158500 Content-Type: text/plain; charset="utf-8" From: Mohamed Mediouni This resets non-architectural state to allow for reboots to succeed. Signed-off-by: Mohamed Mediouni Reviewed-by: Pierrick Bouvier Reviewed-by: Akihiko Odaki Signed-off-by: Peter Maydell --- include/system/whpx-internal.h | 2 ++ target/arm/whpx/whpx-all.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/include/system/whpx-internal.h b/include/system/whpx-internal.h index 8ded54a39b..ad6ade223e 100644 --- a/include/system/whpx-internal.h +++ b/include/system/whpx-internal.h @@ -86,6 +86,8 @@ void whpx_apic_get(APICCommonState *s); X(HRESULT, WHvSetVirtualProcessorInterruptControllerState2, \ (WHV_PARTITION_HANDLE Partition, UINT32 VpIndex, PVOID State, \ UINT32 StateSize)) \ + X(HRESULT, WHvResetPartition, \ + (WHV_PARTITION_HANDLE Partition)) \ =20 #define LIST_WINHVEMULATION_FUNCTIONS(X) \ X(HRESULT, WHvEmulatorCreateEmulator, (const WHV_EMULATOR_CALLBACKS* Cal= lbacks, WHV_EMULATOR_HANDLE* Emulator)) \ diff --git a/target/arm/whpx/whpx-all.c b/target/arm/whpx/whpx-all.c index 44ef42307b..36c5e30a03 100644 --- a/target/arm/whpx/whpx-all.c +++ b/target/arm/whpx/whpx-all.c @@ -497,6 +497,8 @@ int whpx_vcpu_run(CPUState *cpu) if (arm_cpu->power_state !=3D PSCI_OFF) { whpx_psci_cpu_off(arm_cpu); } + /* Partition-wide reset, to reset state for reboots to succeed= . */ + whp_dispatch.WHvResetPartition(whpx->partition); bql_unlock(); break; case WHvRunVpExitReasonNone: --=20 2.43.0